Paper, 'A simple mode of demonstrating how the form of the thorax is partly determined by gravitation' by T P [Thomas Peter] Anderson Stuart Stuart writes: 'It is a well-known fact that the quadrupeds have the transverse section of the thorax elliptical with the long axis vertical. This form of thorax, more or less, is possessed also by the human foetus.' Annotations in pencil and ink. Subject: Physiology Received 12 January 1891. Read 5 February 1891. Communicated by Edward Albert Sharpey-Schafer. A version of this paper was published in volume 49 of the Proceedings of the Royal Society as 'A simple mode of demonstrating how the form of the thorax is partly determined by gravitation'. 1891